remove duplicate definition of SkAlign8()



git-svn-id: http://skia.googlecode.com/svn/trunk@4363 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/images/SkImageDecoder_wbmp.cpp b/src/images/SkImageDecoder_wbmp.cpp
index a3faf3d..fedeedb 100644
--- a/src/images/SkImageDecoder_wbmp.cpp
+++ b/src/images/SkImageDecoder_wbmp.cpp
@@ -96,8 +96,6 @@
     }
 }
 
-#define SkAlign8(x)     (((x) + 7) & ~7)
-
 bool SkWBMPImageDecoder::onDecode(SkStream* stream, SkBitmap* decodedBitmap,
                                   Mode mode)
 {